Neural-Fuzzy Variable Gap Control Method for GMAW Pipe-Line Welding with CCD Camera

Hai Lin Hu; Jing Li; Fang Li; Wei Zhu; He Qiang Pang

doi:10.4028/www.scientific.net/AMM.130-134.2358

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 130-134Neural-Fuzzy Variable Gap Control Method for GMAW...

Neural-Fuzzy Variable Gap Control Method for GMAW Pipe-Line Welding with CCD Camera

Abstract:

He sensing of the weld pool and controlling of torch at the center of the groove are important problems in back welding of GMAW (Gas Metal Arc Welding) for pipeline, furthermore, the gap of the groove perhaps is varied, which needs an intelligent control strategy to obtain the high welding quality. Fuzzy neural network control method based on BP algorithm is proposed in this paper, from the module of image processing, the corresponding gap location and width can be obtained. Then determine corresponding swing width and speed when weld gap is varied by the network fuzzy inference and calculating Euclidean distance for GMAW variable gap backing welding process. Experiment results show that the designed control method can improve the welding quality compared with traditional fixed swing and the traditional auto swing.

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Periodical:

Applied Mechanics and Materials (Volumes 130-134)

Pages:

2358-2363

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.130-134.2358

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Online since:

October 2011

Authors:

Hai Lin Hu, Jing Li, Fang Li, Wei Zhu, He Qiang Pang

Keywords:

BP Algorithm, Euclidean Distance, Fuzzy Neural Network (FNN), Seam Tracking, Variable Gap

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References

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